Directional coupler wherein thickness of coupling lines is small

Details Directional coupler wherein thickness of coupling lines is small Directional coupler wherein thickness of coupling lines is small

1993-01-12

1994-07-12

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333238, H01P 518

Patent

active

053292634

ABSTRACT:
An electric coupler has a dielectric substrate and a mutually parallel pair of quarter-wavelength coupling lines made of microstrip lines, formed on the top surface of the substrate separated from each other by a predetermined distance. The thickness of these coupling lines are smaller than the skin depth at a frequency at which the coupler can function as a directional coupler.

REFERENCES:
patent: 3769618 (1973-10-01), Freedman et al.
patent: 4607240 (1986-08-01), Isota et al.

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